How many times was the head of Emperor Nero's statue replaced?
Emperor Nero constructed a 40-meter tall bronze statue of himself near his palace, the Golden House (Domus Aurea). After his death, the head was swapped out for the sun god, Sol. Then Hadrian relocated the 131-foot high statue to the Flavian Amphitheater (Colloseum), requiring the efforts of 24-elephants. Later, Emperor Commodus substituted Sol's head with one of himself, replete with the attributes of Hercules. Upon the death of Commodus, Sol's head was again restored. The statue survived until the middle ages.